3 years ago

How many molecules are in 49.0 g of H2SO4? Answer in units of molec.

Chemistry

1 answer:

Leokris [45]3 years ago

7 0

Answer:

= 3.01× $10^{23}$ molecules.

Explanation:

1 mole of $H_{2}SO_{4}$ - 98g

? moles of $H_{2}SO_{4}$ - 49g

= 49 ÷ 98 = 0.5 moles of O2 in 49g.

But 1 mole of any substance = 6.023 × $10^{23}$ molecules

∴ 0.5 moles = 0.5 × 6.023 × $10^{23}$ molecules

= 3.01× $10^{23}$ molecules.

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An x-ray has a wavelength

goldfiish [28.3K]

Answer:

Explanation:

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f = 3 x 10^8 / 2.2 x 10^-11

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2 years ago

Given that the molar mass of carbon is 12 g/mol and the molar mass of oxygen is 16 g/mol, calculate the molar mass of carbon dio

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<span>Molar mass(M) is the mass of 1 mole of the substance (grams per mole of a compound).</span>

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3 years ago

This chemical equation represents the burning of methane, but the equation is incomplete. What is the missing coefficient in bot

Zolol [24]

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3 years ago

Read 2 more answers

How many particles would be found in a 1.224 g sample of K2O

lbvjy [14]

Answer:

9.96*10^21

Explanation:

Molar mass of K2O=29*2+16

= 74g per mol

number of moles in the sample= 1.224/ 74

=0.1654